/Engine/Plugins/Experimental/ChaosUserDataPT/Source/ChaosUserDataPT/Public/ChaosUserDataPT.h
TParticleHandle is generalized here because it can beFRigidBodyHandle_Internalor FGeometryParticleHandle which have the same api...
template<typename TParticleHandle> const TUserData * GetData_PT ( const TParticleHandle & Handle ) const